Surgical stapler



FIG. 1 is a top plan view of a surgical stapler showing our new design;

FIG. 2 is a side view of the device;

FIG. 3 is an end view of the device looking from the left of FIG. 2;

FIG. 4 is an end view of the device looking from the right of FIG. 2; and

FIG. 5 is a bottom plan view of the device. 

The ornamental design for a surgical stapler, as shown. 